Ice III

Short description: Alternative state of water ice

Phase diagram of water, showing the region where ice III is stable.

Ice III is a form of solid matter which consists of tetragonal crystalline ice, formed by cooling water down to 250 K at 300 MPa. It is the least dense of the high-pressure water phases, with a density of 1160 kg/m3 (at 350 MPa).[1] It has a very high relative permittivity at 117 and has a density of 1.16 g/cm3 (making it more dense than water). The proton-ordered form of ice III is ice IX.[2]

Ordinary water ice is known as ice Ih, (in the Bridgman nomenclature). Different types of ice, from Ice II to Ice XIX, have been created in the laboratory at different temperatures and pressures.

## See also

* Ice, for other crystalline forms of ice

## References

1. ↑ "Ice III (ice-three) structure". 2012-02-04. http://www.lsbu.ac.uk/water/ice_iii.html.
2. ↑ doktorholz (2018-12-17). "Ice III and IX" (in en). https://crystalsymmetry.wordpress.com/2018/12/17/ice-iii-and-ix/.

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Ice

the solid state of water

Crystalline types|

* Ih
* Ic
* II
* III
* IV
* V
* VI
* VII
* VIII
* IX
* X
* XI
* XII
* XIII
* XIV
* XV
* XVI
* XVII
* XVIII
* Square crystals

Formations and
phenomena|

* Amorphous solid
* Anchor
* Black
* Clathrate hydrates
* Cap
* Cave
* Circle or disc
* Clear
* Crystals
* Dam (roof)
* Diamond dust
* Drift
* Dune
* Field
* Firn
* Fog
* Frazil
* Frost
* Frost heave
* Frost flower (sea ice)
* Glacier
* Glaze
* Hair ice
* Iceberg (calving)
* Icicle
* Jacking
* Jam
* Nucleus
* Sheet
* Shove
* Spike
* Stalactites
* Macroscopic quantum phenomena
* Névé
* Needle
* Rime
* hard
* soft
* Sea
* Slurry
* Slush
* Storm
* Superionic
* Volcano

Ice-related
activities|

* Bathing
* Blasting
* Blocking
* Climbing
* Fishing
* Rafting
* Sculpture
* Skating

Sports|

* Bandy
* Boating / yachting
* Cricket
* Curling
* Cycling
* Figure skating
* Hockey
* Racing
* Tour skating

Constructions|

* Bar
* Bridge
* Hotel
* Igloo
* Palace
* Pier
* Pykrete
* Road

Work|

* Cutting
* Icebox
* Icehouse
* Iceman (occupation)
* Pick
* Trade

Other uses|

* Chips
* Core
* Cream
* Cube
* Pack

Ice ages|

* Glaciology
* Little Ice Age
* Pleistocene

* Category
* Wikimedia Commons
* Wiktionary

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